*Full Lesson* Physics: Pressure in Gases

This is the third lesson in a unit of work on motion and pressure. The lesson is aimed towards KS3 but could be adapted for other levels.

The aim of the lesson is to introduce pupils to the concept of gas pressure using a can crushing practical and a though experiment about blowing up a balloon until it pops.

This lesson includes the can crush/imploding practical which could also be done as a demonstration to save time and resources.

During this lesson pupils will:

• Recap the particle model of a gas and explain how the particles move in relation to each other and their container.
• Conduct/observe can imploding due to air pressure.
• Complete a card sort activity to explain why the can imploded.
• Generally define pressure.
• Use their own knowledge to answer questions about blowing up a balloon until it bursts to infer gas pressure and what causes it.
• Define the idea of gas pressure and its causes.
• Complete/watch a simulation to identify factors which can increase gas pressure.
• Complete some short consolidation tasks.

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